diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateNonTypeArgument.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateNonTypeArgument.java
index f582e7a7d14..a0d72588d36 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateNonTypeArgument.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateNonTypeArgument.java
@@ -27,7 +27,7 @@ import org.eclipse.core.runtime.Assert;
 /**
  * Implementation of non-type template argument, used by AST and index.
  */
-public class CPPTemplateNonTypeArgument implements ICPPTemplateArgument {
+public final class CPPTemplateNonTypeArgument implements ICPPTemplateArgument {
 	private final ICPPEvaluation fEvaluation;
 
 	public CPPTemplateNonTypeArgument(ICPPEvaluation evaluation, IASTNode point) {
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateTypeArgument.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateTypeArgument.java
index b7ad7ff7c0d..1a096073308 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateTypeArgument.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTemplateTypeArgument.java
@@ -21,7 +21,7 @@ import org.eclipse.core.runtime.Assert;
 /**
  * Implementation of type template arguments, used by AST and index.
  */
-public class CPPTemplateTypeArgument implements ICPPTemplateArgument {
+public final class CPPTemplateTypeArgument implements ICPPTemplateArgument {
 	private final IType fType;
 	private final IType fOriginalType;